Winding machine



C. K. DUNLAP WINDING MACHINE Feb. l0, 1931.

Find May '19, 192e 4 Sheets-Sheet l y lnve'nfof,

Feb. 10, 1931. c. K. DUNLAP WINDING' MACHINE Filed May 19. 1928 4 Sheets-Sheet 2 J0 i gmwto@ 4 Sheds-Sheet 3 atto: wud

m1191119 MACHINE@ Filednay 19. 192s 4 sheets-sheet 4 31W@ Mmym amm,

l 5 E. DW, @E TS Application led May 19, 19%. B No. ?@,0i8.

This invention relates to winding ma- Figure 8 is another modification of the chines, and more particularly to the class of structure shownin Fig.. 5; and

. these machines employing a plurality of Figure 9 i's an elevation of the structure thread cop supporting mandrels, each. of shown in Fig. 8,.

5 Which is mounted to swin about an axis Referring more particularly to the dravva from one position in whic the thread is ings, the type of winding machine to which Wound thereon, to another position in which the present invention relates, such as shown the loaded cop may be removed and an. empty in Figs. l and 2, 1s provided with a fricone substituted. tional driving drum l0. A spindle l1 is i@ Means have been provided for automatijournalled on a stein 12 mounted above the e0 cally gripping the inner surface of the cop Winding drum. The stem l2 is carried by when themandrel' is turned to Winding poa pivoted arm 13, which in the form shown sition, and automatically releasing the ccp 1n Fig. l, is provided with a collar 14, keyed when the mandrel is turned to doihng posito a rotatable shaft l5 parallel to the axis of in tion. Generally,-this has been accomplished the dllvlng drum l0- Thc arm 13 S plO- 65 by a @am located at the pvot point of the vided with a weifrht 16 to cause the spindle mandrel, which moves a sliding member ll to bear upon the friction drum l0 so that along the steni thereof as it is swung around, the movement of the drum Will drive the cop the sliding member being operatively concarried by thespindle. The thread or yarn @e Becta@ to the gripping mechanism, to be wound is supplied from below throu h F6 rihe object of the invention is to provide a il Slllflbl thread guide indicated genera y' cop gripping mechanism for engaging the at 17- inner surface of the cop with an even grip AS ShQWD H1 Flglc 2, the shaft 15 is proall around, so as to prevent distortion 0r vided with another arm 22 which is connect 25S loosening of the cop, which will be quick and @d hSTGO by means of bracket 21, pin 20, 75 convenient iii operation, and superior to de- Mld Clamp 94. Clamp 94- is fixed to Shaft vices of this character heretofore devised. 1 5 by mflDS Of the Set SCIeW 95 and is pro Other objects and features of novelty will vided with thepOunterWeight 96 to balance be apparentes the following description prothe 21TH) 22 #in fl S Operating rod 23. The

an ceeds, as taken in connection with the accom- Pod 23 1S PIOVlded v h il handle Q4 and the im panyng (1,.,L-win S in which: lower edge thereof is serrated so as to ad- Figure l is a iag'rainmatic elevation of a Jusmbly recelve 2111 abutment member 25. portion of a Winding machine Showing only VVit'h thearrangement described above, it so much thereof asis necessary for an under- "hh he Ohvlohs that Whhh the Operator he 35 standing of the present invention; .Sh'es t0 dlsehghge the spmdle from the dIlY- hh Figure 2 is an end elevation of the strucmg drum he maypuu 0h the handle 24 uhhh ture Shown in Fig l; one of the sci-rations will engage the abut- Figure 3 is an enlarged detail view, partly bmenh go' Thls Operhtmh through hhemem in section showinfr the improved spindle for ers 27 2l and 20 V111 rock the ,Shaft l5 @Hd o thus lift the arm 13 and the spindle carried 90 SUPPOTng (20101031 @,OPS thereby to the position shown in dotted lines Figure 4: is a section taken along the line in Fim Q 'f-Lt of Flg 3; The spindle end of the arm 13 is bifurcated Flghre 5 1S a VleW Slmlar t0 Flg- 3, ShOW- as at 2G to receive an enlarged end 27 of the its 111g the arrangement fm' SUPPO'tHlg tubustem l2 which is pivoted therebetween, and 95 lar cop; when the spindle is raised to the position Figure 6 is a cross section along the line shown in Fig. 2, the stein may be swung outtd@ of Fig. 5; wardly to the position shown in dotted lines, Figure 7 is a view similar to F ig. 5 showso that the cop may be manually removed. 5;@ ing a Inodied forinof the structure; The arrangements for releasing the cop as 10@ larged end 35 `Jfrusto conical the spindle is thrown outward are shown in detail in Figs. 3 and 4. An arm 30, similar to the arm 13, is provided with a journalled end 31 about which the arm pivots, and the other end is bifurcated at 32. A weight 33 is mounted intermediate the ends of the arm 30. The stein 34 is provided with an enivoted on a pin 36 carried between the bifurcations 32. The enlargement 35 is generally circular, but is expanded opposite the stein 34, and depressed to form a seat 37 which receives the rolled end of a Spring member 38 adjustably secured on the arm 30 by means of a bolt 39 passing through an elongated slot in the spring 38.

The greater part of the stem 34 is of the reduced diameter shown, and upon this reduced portion is journalled the rotatable spindle 40. The spindle is generally cylindrical, with a conical outer end as at 41, and an enlarged frusto conical base 42, The metal of the spindle is cored or cut away interina diate its ends, leaving the bearing portions 43 and 44 at its respective ends. A washer 45 is located between the base 42` and the shoulder 46 formed by the reduced portion of the stem 34, and the spindle is held on the stem by a washer 47 secured in place by a screw 48.

Mounted on the spindle 40, and outwardly inclined therefrom, are a plurality of spring members 50, each haring at its outer end a Spur 51 for engaging the inner surface of a cop 52 carried by the soindle. lin the form shown, the members are secured to the spindle at its frusto conical base, and are preferably inte ral with an annular ring 53 which is secure to the base 42.

It will be apparent from an inspection of Fig. 3 that the spring members 50 are normall;7 expanded in a position in which the points 51 penetrate the cone, and furthermore, that this penetration is in the direction which tends to pull the cone onto the spindle, rather than to push it off. Furthermdre, it will be apparent that the points 5l move in arcuate paths about the ring 53, which paths are concave toward the pivoted end of the spindle.

A collar 54 is carried by the spindle in a position to embrace the spring members 50, and is axially slidable in one direction to contract the members 50, orto permit them to expand when it is moved in the other direction. The collar 54 is carried by rods 55 passing throu h apertures 56 in the hollow ase 42. The ends of the rods are adjustably secured by means of nuts 55a to another collar 57 slidably mounted on the enlarged portion 58 of the stem 34.-

It should be noted that the bifurcations 32 terminate in cam portions 60, so that when the stem 34 is swung outward from the position shown in Fig. 3, the cam portion 60 will engage the collar 57 and urge it toward the merece outer end of the spindle. This will cause the rods 55 passing through the spindle to push the collar 54 outwardly and contract the spring members 5U, thus removing the spurs 51 from the inner surface of the cop and permitting it to be readily removed. Upon return of the parts lo the position shown in Fig. It, the spring action ol' the inclined ineinbers 5t), bearing upon the conical interior surface 5t) ot the collar 5l will l'orce the rods 55 to return the collar 50 to its original position.

The expansive force of the spring niembers 5() acting to grip the cop may be regulated by adjusting the nuls 55d. Obviously, the fixing of the extreme position ol' the collar 54 closer to the free end of the spindle will decrease the engagement of the points 5l with the inner surface of the cop.

The enibodinient of the invention shown in Figs. 3 and 4 is adapted for use with cops of the cone type. However, the invention is also equally adapted for tubular cops, and embodiments of the invention for this purpose are shown in Figs. to S) inclusive.

Referring uiorc particularly to Fig. 5, a stein (5l is provided in the place of the stein 34 shown in the inodilication previously de scribed. and is integral with the enlargenient 35 pivoted on the pin 36 mounted between the bifurcations 32 ofthe arm 13. The seat 37, spring 38 and adjusting bolt 3S) are identical with those previcusly described.

Mounted on the stein (il is a tubular spindle (52, one end of which is slotted as at (33, dividing the end of the spindle into a plurality of tongues G4. The outer surfaces of the tongues (i4 are threaded or corrugated as at o5 and are normally flared oul\\'ardl \Y :is shown in Fig, 5, and provided with conical Surfaces at their ends oo. The bore ol' the. spindle (52 is enlarged at its outer end as at (57, forming a shoulder (i8. A washer of) se` cured to the outer end of the stein (il b v a machine screw 70, engages the shoulder (38 and secures the spindle (32 on the stein ol for rotation thereon.

Mounted on the stein (il between the spindle (32 and the head 35 isa collar 7l having a conical inner surface 72 adapted to slidably receive the conical surfaces (5G of the outer ends of the tongues (i4, and a washer 74 `is located between the collar 7l and the inner end of the spindle.

It Will be obvious from an inspection of Fig. 5 that when the stein is swung from the position shown in full lines to the position shown is dotted lines, the washer 74 engaging the inner surface of the collar 7l will ride along the cam surface o() forcing the conical surface 72 to ride over the conical ends 66, thus contracting the tongues (34. In this position the tubular cop 73 ,may slide over the spindle 62 so as to abut the outer edge df the collar 7l. When the stein 61 is swung back to the position shown in full lines, the tongues 64 will expand as the collar 7l rides off the cam 60, and the threads or corrugations-65 will grip the inner surface of the tube 73 so that it will rotate with the spindlevf for winding purposes.

The gripping force of the tongues 64C may be adjusted by the structure shown in Fig. 7. lVith this arrangement the bore 67 is threaded to receive locking plugs 75 and 76. The

washer GS) and screw 70 are omitted, and a ilistcr headed screw 77 is substituted. When the plugs and 76 are removed, the screw 77 may be unscrewed, which will permit the spindle 62 to move outwardly along the stem 61. 'lhiswill permit the tongues 6l to move further out along the surface 7 2 of the collar 71 and exert greater pressure on the inside of the tube 73. Obviously, tightening up the screw 77 will have the reverse effect. In either case if the adjustment is effected, the plugs 75 and 76 are threaded into the bore 67 and securely lock the screw 77 in its adjusted position.

In the embodiment shown in Figs. 8 and 9, the gripping takes place at the outer end of the spindle. The spindle 80 is provided with an enlarged inner end 81 forming a shoulder 82 against which the tubular cop abuts when it is mounted on the spindle. The outer end of the spindle 80 is slotted forming tongues 83 having threaded surfaces 84 and conical surfaces 85 at their outer ends. and normally flared outward from the periphery of the stem 61. A collar 86 having a conical inner surface 87 is mounted on the stem 88 of a bolt 89, the inner threaded end of which is of reduced diameter to enter thc tapped hole 90 in the outer end of the stem (i1. At the pivoted end of the stem 61, an L-shaped stop member 91 is provided, which preferably though not necessarily 'formed of spring metal. One of the legs 93 of this member 91 is adapted to receive the stem 61 within its slot and bear against the inner end 81 of the spindle 8O to prevent the spindle 80 from approaching too close to the pivoted joint or having too much play upon the stem 61 when the spindle is in running position. The outer leg 97 of the member 91 is provided with a slot 98 which receives the pin 36 and is adapted to provide for limited movement of the member 91 upon the pin 36. The inner end of the slot l98 is adapted to abut the pin 36 to prevent any further movement of the member 91 and spindle 8() toward the left than is shown in Figure 8.

When the spindle is swung outward, the inner lsurface of the flange 93 rides on the cam surface 60 and bears against the end 8l, urging the spindle 80 outward so that the conical ends ofthe tongues 83 will be contracted b v the conical surface 87 of the collar 86. This will permit a tube to slide over the s indle 80 and abut against the shoulder 82. hen the spindle isswung back to the position shown in Fig. 8, the spring action of the tongues 83 will cause them to expand and the surface sldin against the surface 87 will urge the spindle inwardly 'on the stem 61 against the member 91. The corrugations 84 will then engage the interior surface of the tube and securely hold it on the spindle 80 for rotation therewith. In this form the bolt 89'is set up tight in the hole 90, so that i't maintains a fixed position.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. In a cop winding machine having means for supporting a co for winding when in one position anda apted to be swung to another position to permit the cop to be removed, the combination of a spindle having a plurality of spring members normally flared outwardly therefrom and adapted to engage the inner wall of a cop carried by said spindle, means for contracting said spring members to release the cop, and means for adjusting said contracting means to limit the gripping force of said members.

2. In a cop winding machine a spindle adapted to support a tubularcop for winding when in one position and to be swungto another position to permit the cop to be removed, said spindle having one end slotted, forming a plurality of tongues, said tongues heilig normally flared outwardly and vcorrugated for gripping the inner surface of the cop, the ends of the tongues having cam surw faces, and a collar mounted coaxial with said. `spindle having a conical inner surface adapted to engage the ends of said tongues to contract them for releasing the tubular cop when the spindle is swung to doling position.

3. In a cop winding machine, a pivoted stem, a tubular s indle journaled on said stem. said spindle aving an enlarged inner end forming a shoulder to receive the end of a tubular cop, the outer end of the spindle being slotted and expanded, forming a plurality of outwardly flared tongues, each of.

said tongues being corrugated to grip the inner surface of the cop, and tapered at the outer end, a collar mounted at the outer end of said stem having a conical inner surface, a spring bearing on said enlarged inner end normally urging the tongues into the conical collar, and a cam actuated by moving the stem about its pivot for moving said spindle outwardly on said stem to contract the tongues and release the spindle.

In testimony whereof I hereunto affix my signature. v

CHARLES K. DUN LAI.

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